YOU SAID:
How young is that cat
INTO JAPANESE
その猫はどれくらい若いですか?
BACK INTO ENGLISH
How young is the cat?
INTO JAPANESE
猫はどのくらい若いですか?
BACK INTO ENGLISH
How young are cats?
INTO JAPANESE
猫はどのくらい若いですか?
BACK INTO ENGLISH
How young are cats?
Come on, you can do better than that.